How to Run an Olive Oil Tasting in Your Restaurant Kitchen

Most kitchens choose olive oil from a price list and a spec sheet. Neither tells you how the oil tastes, or what it does to your food. A short tasting in your own kitchen does both.

This guide walks through the method we use with chefs across Atlanta. It borrows the basics from how professional panels taste olive oil, then adds the step that matters most in a restaurant: tasting the oil on your own dishes. An oil can taste one way from a glass and quite another on hummus, grilled fish or a bowl of soup.

You can run it with any oils: your current one, a new one you're considering, or a fresh harvest of the oil you already use.

What you need

Everything fits on one sheet tray, and most of it is already in your kitchen.

• Small dark glasses or cups, one per oil, per taster. Professional panels use dark blue glass so the oil's color can't sway the taster. Any small, clean, odor-free opaque cup works.
• A lid for each cup. A saucer or a square of foil holds in the aroma while the oil warms.
• Masking tape and a marker to code the cups.
• Green apple slices and water (still or sparkling) to reset your palate between oils.
• Plain bread, with no butter or seasoning.
• One or two of your own dishes, the ones the oil will actually go on.
• A scoresheet and pen for each taster (a simple one is below).
• About a tablespoon of each oil per cup. The official panel method uses 14 to 16 ml.

Set it up

Start small. For a quick tasting, start with two oils and one dish. Prepare the food and code the cups beforehand. That fits in about 20 minutes; more oils, bread and side-by-side cooking make the session longer.

Pick a quiet window. Between lunch and dinner service works best, when nobody is rushing and palates aren't tired. Professional panels prefer late morning, before lunch. Ask tasters to skip coffee, gum and cigarettes for half an hour before.

Taste blind. Have someone who isn't tasting pour the oils into the cups and mark each one with a random code, like 418 or K7. They keep the key until the end. Labels, price and loyalty all shape what we taste, so hiding them gives each oil a fair hearing.

Bring the oils to the same temperature. Professional panels hold samples at 28 ± 2 °C (about 82 °F) throughout the tasting, because warmth releases aroma. In a kitchen, cupping the covered glass in your palm for a minute or two is a practical approximation. What matters most is that every oil is at the same temperature.

Compare like with like. Taste cooking oils against cooking oils and finishing oils against finishing oils. A delicate oil next to a very robust one will seem flat, even if it's excellent.

How to taste each oil

1. Warm it. Hold the covered cup in your palm and swirl gently for a minute.
2. Smell it. Lift the lid and take two or three slow sniffs. Note what you get: cut grass, green tomato leaf, artichoke, green apple, almond, ripe fruit.
3. Sip it. Take a small sip, about half a teaspoon. Spread it around your whole mouth.
4. Slurp. With your teeth almost closed, draw in air through the oil. Tasters call this strappata. It carries aroma to the back of your nose, where most of the flavor is read.
5. Swallow a little. That is where you feel pungency.
6. Write it down before talking to anyone. Writing before discussing keeps other people's opinions from shaping your notes.

Three positive qualities describe a good extra virgin olive oil:

Bitterness and pepper are not faults. They come from the oil's natural phenolic compounds and are typical of fresh oils from green olives. Intensity is not quality either: a mild oil can be excellent, and a robust one can be defective. The question is whether the oil is clean, fresh, and right for the dish.

Know the common defects

An extra virgin olive oil must be free of defects, so it helps to know their names. Professional tasters learn them in guided training, using reference samples whose defect has been confirmed. An oil that has simply been open for a long time is not a reliable reference: it may or may not be rancid.

Rancidity is the defect kitchens meet most often, because oil keeps oxidizing after the container is opened, faster with light, heat and air. The International Olive Council recommends finishing opened oil promptly, generally within one to three months. In practice: store it away from the stove and out of the light, keep it sealed, write the opening date on the container, and choose a container size your kitchen finishes quickly.

The order of pours

Go from mild to robust, and reset between every pair. A strong oil tasted first will make the next one seem empty.

1. Cooking oils, blind. Your current cooking oil against the one you're considering. Reset.
2. Finishing oils, blind. Your current finishing oil against the one you're considering. Reset.
3. Bread. Taste each oil on a plain piece of bread. This is the bridge from the glass to the plate.
4. Your dish. The step that decides it (next section).

How to reset: a bite of green apple, then a sip of water. Wait a minute before the next cup, and keep the session to four oils or fewer so palates stay sharp.

Finish on your own food

The glass tells you whether an oil is clean and fresh. Your food tells you whether it belongs on your menu. Before you start, ask one question: which dish does this oil have to earn its place on?

Then taste each oil on that dish, still blind. Use the same portion, the same amount of oil, and the same spot on the plate. For a cooking oil, cook two small batches side by side, such as two pans of onions or two trays of roast vegetables. For a finishing oil, drizzle it just before tasting.

Food changes everything. Bitterness that stands out in a glass can disappear into chickpeas, tahini or grilled meat, and a mild oil can vanish on a strong dish.

Score it and decide

Keep the scoresheet simple. Each taster fills in a row per cup, before anyone reveals the codes.

Fruity, bitter and pungent measure intensity: 0 means absent, 10 means very intense. A higher number is not a better score. "On the dish" measures how well the oil suits that dish, from 0 (not at all) to 10 (perfectly). Don't add the columns together, or the most intense oil wins automatically.

Any defect rules an oil out, however good the price. After that, the "on the dish" score carries the most weight. Reveal the codes only once everyone has scored.

If a new oil wins, don't switch the whole kitchen at once. Run it on one dish, or at one location, for a week or two, and decide with the team after real service. Agree beforehand what success looks like: the dish tastes better, cooks well, and the cost per plate works.

Judge price per plate, not per liter. As an example, an oil that costs $3 more per liter adds 1.5 cents to a 5 ml drizzle. Set that against how much the dish improves.

Use it again: blends and new harvests

The same method works for choosing a blend. When we build a custom blend for a kitchen, we bring a few ratios of Chemlali and Chetoui, and the team tastes them blind on their own dishes. The chef picks the profile, and we supply that ratio ready-blended.

Run the tasting again when a new harvest arrives. Olive oil is an agricultural product, and each harvest can taste a little different, much like wine from one year to the next. A quick tasting confirms the oil still suits your dishes, or shows whether the blend needs adjusting.